在严重抑郁症患者的认知行为治疗中,边缘灰质增加
Esther Zwiky1,2, Tiana Borgers3, Melissa Klug3
1Department of Psychology, University of Halle, Halle, Germany.
Translational psychiatry
|August 26, 2025
概括
大型抑郁症的认知行为治疗 (CBT) 增加了海马和桃体的灰质体积. 这些结构性大脑变化表明CBT对精神病理和大脑结构都有影响.
科学领域:
- 神经科学
- 精神病学
- 放射学
背景情况:
- 大型抑郁症 (MDD) 与大脑皮质和边缘区域的灰质体积减少有关.
- 与药物或电疗法不同,心理治疗对大脑的结构性影响尚不清楚.
研究的目的:
- 研究认知行为疗法对MDD患者大脑结构的影响.
- 探索脑部结构变化与认知治疗后症状改善之间的潜在联系.
主要方法:
- 使用结构磁共振断层扫描进行自然纵向研究.
- 在20次CBT治疗前后,对30名MDD门诊患者进行灰质体积 (GMV) 评估和临床测量.
- 将患者数据与30名健康对照人进行比较.
主要成果:
- 在MDD患者中,在CBT后观察到右前海马和双边桃体的显著GMV增加.
- 在左桃体中发现了显著的分组相互作用 (p ≤ 0. 022).
- 在右后海马体中观察到体积下降 (p = 0. 016).
- 右桃体体积增加与情绪识别的改善相关 (rs = 0.321, p = 0.042),但没有发现与整体症状改善的关联.
结论:
- 在患有MDD的患者中, CBT对精神病理和大脑结构都有影响.
- 认知治疗后杏仁灰质体积的增加与情感识别的增强有关, 这凸显了情感意识的提高.
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